Fungi are a large group of organisms that range greatly from tiny living things such as yeasts and moulds to much larger and more familiar mushrooms such as the Champignon mushrooms and truffles. There are many different types of fungi that can be found almost all over the world. Scientists estimate there actually might be up to 5 million different fungus species, and as you will see in today’s post, some of them are very interesting. From the Brain Mushroom and the Bleeding Tooth Fungus to the iconic Fly Agaric, check out this list with different types of fungi. Here are 25 Most Bizarre Mushrooms You Need To See.